Drug Recognition Expert. They're trained & certified in determining whether or not somebody who's been arrested for DUI has been using drugs after they blew a 0.0 BAC.

Overall, it's pseudoscience at best. They're not medical doctors and frankly do not possess the training or skill to accurately interpret medical conditions, take vital signs and determine muscle rigidity and the causes thereof.

It's all opinion & I would imagine they feel like a total ass after they realize that the person's urine was squeaky clean...

Stands for Disk Reading Error. Videogame term unheard before the arrival of the PS2, now very common due the dubious quality of the hardware used by Sony. Commonly used on internet message boards by poor, unsuspecting gamers that can't play the latest Square game.